Some physiological effects of abscisic acid on vicia faba plants III- changes in gibberellins and cytokinins contents

ABSTRACT

The activity levels of the endogenous gibberellins and cytokinins were followed in the extracts of radicles and plumules of Vicia faba seedlings at different stages of germination and seedling growth. It has been observed that the changes in the activity levels of both gibberellins and cytokinins were detected after treatment with the concentration of ABA [10-6 M]. Low concentration of ABA [10-9 M] induced marked increase in the contents of the same hormone in the radicles and plumules extracts throughout the experimental period